Taylor



JENNEY &- TA YL0R. A l Lamp Burner. No. 110241. Patented Deo. 20, 1870.y

N. PETERS, PHOTO-LITHOGRAPMFR. wASmNGTDN. D C4 `WALTER rnOOTOn JENNE'YAND GEORGE WASHINGTON TAYLOR, OE FAIR- HAVEN MASSACHUSETTS.

,- Letters Patent No'. 110,241, dated December 20, 1870; antedatedDecember 15, 1870.

'-'lMPROVE-IAVIENT' IN LAMP-BURNER-S.

The Schedule referred to ln these Letters :Patent and making part *ofthe same.

To ull-'whom it may concern:

Be it known that we, WALTER BnocTon JENNEY and GEORGE VASHIXGTON,TAYLOR, O` Fairhaven, in'the vcounty of Bristol and State ofMassachusetts, have invented a new and improved Lamp-Burner and `we dohereby declare that the following is a full, clear,

` and exact description thereof, reference being had to the accompanyingdrawing iication, in which- .1

Figure 1 is a side view-of the improved burner. '-f Figure 2 is -atopview of the same.

making part of this speci- Figureis a diamctrical section through theburner.

Figure 4 isa diametrical section through the burner,

The nature of our invention consistsl First, in thecombination ofair-directors anda lampburuer shell, which is very nearlyin the form oftwo paraboloids united together by au annular horizontal contractedportion, whereby the currents of air which enter the burner from belowin a direction parallel to its vertical axis,and which impinge againstits sides, will not onlybe directed inwardly and the heat whichy isradiated from that part of theliaine below thetop of the burner bereflected downwardly in parallel rays through the'air, but,'by theaction of the directors,

. the draught is also increased and a larger perceutuin of oxygen issupplied to the flame, and the flame is caused to assume a flattenedfish-tail form, all as will be hereinafter explained.

In. such a combination v'as above described,'it con i Siets- Second, inarranging the directors in reliefl from the wick-tube, as will behereinafter described.

Thil-d, inthe application to a burner Of a gallery of spring lingers,which Arise from the flanged base oi= the burner and are so curved and.separated that while they afford, bytheir elasticity, a means forholding the chimney safely in place, they also serve as a means forvretarding the ascent of air between the chimney and burner, and thusprevent sudden draughts of air Vimpinging against the iiame above theburner, as will be hereinafter explained,

Fourth, it consists in the arrangement of the flanged shell upon theflanged perforated .diaphragm and un- ;der the springs, so that theshell and springs may' be readily removed without disturbing thediaphragm, as will be hereinafter described.

To enable others skilled in thc art to understand vour invention, wewillf describe its construction and operation.

In the accompanying drawingl Arepresents the improvedburner-shell,whiclris I showing the lower portion of a lchimney appliedfo it.A

produced by thel well-known operation'of drawing a sheet of metal on adie.

The lower section oi' this burner-shell is of the form of the frustum ofa parabola, havingv a auged base and an annular contracted portion, a,which is rounded, as shown in figs. 1,; 3, and 4, and which terminatesin the concavo-eonvex slotted end b.

This portion a is also of a parabolic form, and its slot, o, throughwhich the flame passes, has parallel l sides, as shown in iig. 2.

From the ends ofthe slot a two narrow strips, u n.,

incline inwardly or toward the'narrowedges ot' the wick-tube E, but donot touch this tube.` These pieces n n are,.prei`erably, soldered to theinside of the burner- Ashell, although they may be-made by bending downportions oi the shell which Vare cut in forming the slot o.

Surroundingthe burner-shell A is a chimney-holder, C, which consists ofaeircular collar, p, and spring lingers c c.

This chimney-holder is contracted just above the collar p, so as toaiord a base-support for the chimney N, as shown in iig. 4, and also toallow a free inlet of air fthrough the passages c' c', as indicated bythe arrows in g. 4.

The fingers are curved somewhat like the letter j; so that their 'upperconvex sides will bear outwardly against the chimney N and hold it inplace. 4These spring ingers c also operate to retard the ascent of airowing in at 'isutiiciently to prevent flickering from sudden draug'hts,but they do not prevent the proper supply of air tothe flame 'above theburner. These spring fingers 'c .extend up nearly to the annularcontraction a of the burner-shell A and curve inwardly, thus forming anornamental gallery around this shell. This chimney-holder G is securedpermanently to the base-iiaiige of the burner-shell.

Within the burner-shell A is a perforated concavoconvex diaphragm, G,attached to a circular iiangc, h, which is held in place within thecollar p by means of bayouet-astenings g. To this diaphragm thewick-tube E and screw-connectiond) are permanently fixed, as shown inthe drawing.

The adj nsting-'spurs j are applied to the spindle J, and adapted foradjusting the wick inI the usual welllinown manner. v K Thebayonct-fastcnings, which are used for connecting together the twosections constituting the burner, consist of L-shaped slots formed inthe lange 7i' of the diaphragm,which receive studs or raised portions onthe inner side of th collar p of the section C.

The advantages attending the peculiar form lof the ,burner-shell are,that the currents of air rising to the flame and impiuging on the sidesof the lower portion of this shell will be directed toward the verticalcenter thereof, and7 th'ese mixing7 will impinge upon the broad sides ofthe ame and spread it in a direction with the Widest part of thewick-tube. The flame being inthe foci of the paraboloids, any heatradiated from 'that part of it which is below the top of the burner .thedame will present'the sh-tail form.

- The effect of the directors n n is to'prevent cold currents of airfrom impinging against the narrowestl sideof the flame; also to cause acontraction of the air currents passing through the burner above thelevel of the wick-tube and below the upper end of this burner; also, tocause a large lpereenturn of air to pass up on opposite sides of thebroadest sides of the flame, and thus compress and spread the llame;

We do not claim a lamp-burner cone; nor do we claim a cap with straightsides anda reduced rounded tip; nor do we claiml deflectors having'closed sides; nor do we claim retaining a lamp-chimney-in position bymeans of springs but WVhat we do claim as our invention secure byLetters latent, is-

L'The defleetors n n., applied on the inside of the shell at the base ofthe slot o, and arranged in relief from the wickftube, in combinationwith the air-space between the ring h and the collar D, substantially invthe manner shown and described. 1

2. The combination of the specified` deflectors n n with the shell A a bo, such shell being ot' the form herein described.

3. The device O, constructed with a collar, p5 curved spring'iingers cc, and air-passages i, in combination with the ring 71, shell A a b aandthe chimney N. all in the manner and for the purpose described.

4. The chimney-holding and retaining device G, with the spring fingers cformed on it in such manner that the base of the slots between Ythefingers forms air-passages, both inside and outside of the lampchimney,when such chimney is placed around the bumensubstantially as described.

5. The arrangement of the flanged shell upon the flanged diaphragm G andunder the springs e, substantially inthe manner. described, so that theshell may be. readily detached when necessary.

XVALTER BROCTOR i J ENN EY. GEORGE WASHINGTON TAYLOR.

, and desire to lVitnesses:

GHAs. DREW, BAIrrHW. TAKR.

